Unlink contacts

I'm having trouble with my contacts linking together So when I text, use phone, go on the internet.. Whoever is linked to my phone, Can I get some help with this..
This is private information about myself, family or what not..
This phone needs to unlink it's contacts.
I think I am 110% right on to who this is coming from

1. What kind of phone do you have?
2. What gives you the impression that someone is linked to your phone?
3. What does "this is private information about [yourself], family or what not" has to do with anything? I'm not understanding
4. You stated that "this phone needs to unlink its contacts". That's not making any sense.
5. "I think I am 110% right on to who this is coming from"? Can you elaborate?